Remove message_loop_helpers.h and update the includes to point to the new location.

chrome/browser/automation/automation_provider_observers.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_
 #define CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_
 #pragma once
 
 #include <deque>
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop_helpers.h"
+#include "base/sequenced_task_runner_helpers.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/values.h"
 #include "chrome/browser/autofill/personal_data_manager.h"
 #include "chrome/browser/autofill/personal_data_manager_observer.h"
 #include "chrome/browser/automation/automation_provider_json.h"
 #include "chrome/browser/automation/automation_tab_helper.h"
 #include "chrome/browser/bookmarks/bookmark_model_observer.h"
 #include "chrome/browser/browsing_data_remover.h"
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/cros/network_library.h"
@@ skipping 1918 matching lines @@
   base::WeakPtr<AutomationProvider> automation_;
   scoped_ptr<IPC::Message> reply_message_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowMaximizedObserver);
 };
 #endif  // defined(OS_LINUX)
 
 
 
 #endif  // CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_